2.4.20-pre7-ac3 spurious 8259A interrupt

From: Gabor Z. Papp (gzp@myhost.mynet)
Date: Sun Sep 29 2002 - 04:28:33 EST


Asus TUSL2-C mobo

ide: Assuming 33MHz system bus speed for PIO modes; override
with idebus=xx
ICH2: IDE controller at PCI slot 00:1f.1
ICH2: chipset revision 2
ICH2: not 100% native mode: will probe irqs later
    ide0: BM-DMA at 0x9800-0x9807, BIOS settings: hda:DMA, hdb:pio
    ide1: BM-DMA at 0x9808-0x980f, BIOS settings: hdc:DMA, hdd:pio

ide0 at 0x1f0-0x1f7,0x3f6 on irq 14
ide1 at 0x170-0x177,0x376 on irq 15
ide2 at 0xb800-0xb807,0xb402 on irq 9
ide3 at 0xb000-0xb007,0xa802 on irq 9

# cat /proc/interrupts
           CPU0
  0: 185641 XT-PIC timer
  1: 3426 XT-PIC keyboard
  2: 0 XT-PIC cascade
  8: 0 XT-PIC rtc
  9: 266188 XT-PIC ide2, ide3, eth0
 14: 229633 XT-PIC ide0
 15: 229618 XT-PIC ide1
NMI: 0
ERR: 0

On heavy ide1 usage (disk present only on the primar
channel) I'm getting

              spurious 8259A interrupt: IRQ15.

messages all the time.

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